diff --git a/core/libs/prx/libSceVideoOut/Unimplemented.cpp b/core/libs/prx/libSceVideoOut/Unimplemented.cpp
index ef58c55add..24bf6dbc9d 100644
--- a/core/libs/prx/libSceVideoOut/Unimplemented.cpp
+++ b/core/libs/prx/libSceVideoOut/Unimplemented.cpp
@@ -7,6 +7,14 @@
 
 extern "C" {
 
+APS5_EXPORT("YNw9Xk5iNWo", sceVideoOutUnknown_YNw9Xk5iNWo);
+int APS5_VABI sceVideoOutUnknown_YNw9Xk5iNWo(int handle, void* status) {
+    (void)handle;
+    (void)status;
+    NotImplemented_nid_no_patch("YNw9Xk5iNWo");
+    return 0;
+}
+
 int APS5_VABI sceVideoOutSetFlipMaster() {
     NotImplemented_nid_no_patch(__func__);
     return 0;
diff --git a/docs/dev/debt/libSceVideoOut.md b/docs/dev/debt/libSceVideoOut.md
index ce195aa306..ac9a3fb89a 100644
--- a/docs/dev/debt/libSceVideoOut.md
+++ b/docs/dev/debt/libSceVideoOut.md
@@ -8,6 +8,7 @@
 
 ### Unknown function info
 
+- [sceVideoOutUnknown_YNw9Xk5iNWo](../../../core/libs/prx/libSceVideoOut/Unimplemented.cpp) (libSceVideoOut, NID `YNw9Xk5iNWo`) - imported by Onimusha Way of the Sword (PPSA27836) on a newer SDK. The observed call shape is `(handle, status)` based on the import site, but the function's semantic name, output layout, and console behaviour are unknown; it is exposed only to let module loading reach the next unresolved dependency and reports an explicit unimplemented call when invoked
 - [sceVideoOutDeleteVrrActiveStatusEvent](../../../core/libs/prx/libSceVideoOut/src/Event.cpp) (libSceVideoOut, NID `-q-vbO859Tw`) - the name hashes to the NID PPSA02530 imports and is listed in [sce_symbols](https://github.com/zecoxao/sce_symbols) `aerolib.csv` at `fe2cc2948e`. The signature `(eq, handle)` and the behaviour, removing the handle's VRR status registration from the queue as the other `Delete*Event` calls do, follow sceVideoOutAddVrrActiveStatusEvent; no title has been observed calling it
 - [sceVideoOutGetOutputStatusWithVrr](../../../core/libs/prx/libSceVideoOut/src/Output.cpp) (libSceVideoOut, NID `gWT7X8H0bYs`) - `(int handle, void* status)`, the 80-byte layout and the return codes follow the clean-room description in #2746. Bytes 0-47 are `sceVideoOutGetOutputStatus`'s; bytes 48-53, which the console copies from an internal query whose fields are not established, are written as zero, as are the rest, so the 16-bit value at byte 52 never adjusts `refreshRate`. A null `status` returns `0x80290002` and an unknown handle `0x8029000B`. The console's earlier global-flag check (`0x8029001C`) and its object-field check (`0x8029001B`) test states that are not modelled and are never reported.
 - [sceVideoOutRegisterBuffers2](../../../core/libs/prx/libSceVideoOut/src/Buffer.cpp) (libSceVideoOut) - buffer option 8 (STRICT_COLORIMETRY) is presented as option 0, with the stored values unchanged; what the console changes for it is unknown. Only options 0 and 8 are accepted